Java tutorial
package org.gwtbootstrap3.client.ui; /* * #%L * GwtBootstrap3 * %% * Copyright (C) 2013 - 2014 GwtBootstrap3 * %% * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * #L% */ import org.gwtbootstrap3.client.ui.base.HasFormValue; import org.gwtbootstrap3.client.ui.base.HasId; import org.gwtbootstrap3.client.ui.base.HasPull; import org.gwtbootstrap3.client.ui.base.HasResponsiveness; import org.gwtbootstrap3.client.ui.base.helper.StyleHelper; import org.gwtbootstrap3.client.ui.base.mixin.EnabledMixin; import org.gwtbootstrap3.client.ui.base.mixin.IdMixin; import org.gwtbootstrap3.client.ui.base.mixin.PullMixin; import org.gwtbootstrap3.client.ui.constants.DeviceSize; import org.gwtbootstrap3.client.ui.constants.Pull; import org.gwtbootstrap3.client.ui.gwt.Widget; import org.gwtbootstrap3.client.ui.impl.SimpleRadioButtonImpl; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Document; import com.google.gwt.dom.client.Element; import com.google.gwt.dom.client.InputElement; import com.google.gwt.event.dom.client.ChangeEvent; import com.google.gwt.event.dom.client.ChangeHandler; import com.google.gwt.event.dom.client.HasChangeHandlers; import com.google.gwt.event.shared.HandlerRegistration; import com.google.gwt.uibinder.client.UiConstructor; import com.google.gwt.user.client.ui.RootPanel; /** * A simple radio button widget, with no label. */ public class SimpleRadioButton extends com.google.gwt.user.client.ui.SimpleRadioButton implements HasResponsiveness, HasId, HasPull, HasFormValue, HasChangeHandlers { private static final SimpleRadioButtonImpl impl = GWT.create(SimpleRadioButtonImpl.class); /** * Creates a SimpleRadioButton widget that wraps an existing <input * type='radio'> element. * * This element must already be attached to the document. If the element is * removed from the document, you must call * {@link RootPanel#detachNow(Widget)}. * * @param element * the element to be wrapped */ public static SimpleRadioButton wrap(Element element) { // Assert that the element is attached. assert Document.get().getBody().isOrHasChild(element); SimpleRadioButton radioButton = new SimpleRadioButton(InputElement.as(element)); // Mark it attached and remember it for cleanup. radioButton.onAttach(); RootPanel.detachOnWindowClose(radioButton); return radioButton; } private final IdMixin<SimpleRadioButton> idMixin = new IdMixin<SimpleRadioButton>(this); private final PullMixin<SimpleRadioButton> pullMixin = new PullMixin<SimpleRadioButton>(this); private final EnabledMixin<SimpleRadioButton> enabledMixin = new EnabledMixin<SimpleRadioButton>(this); /** * Creates a new radio associated with a particular group name. All radio * buttons associated with the same group name belong to a * mutually-exclusive set. * * Radio buttons are grouped by their name attribute, so changing their name * using the setName() method will also change their associated group. * * @param name * the group name with which to associate the radio button */ @UiConstructor public SimpleRadioButton(String name) { this(Document.get().createRadioInputElement(name)); } /** * This constructor may be used by subclasses to explicitly use an existing * element. This element must be an <input> element whose type is * 'radio'. * * @param element * the element to be used */ protected SimpleRadioButton(InputElement element) { super(element); } @Override public HandlerRegistration addChangeHandler(ChangeHandler handler) { return addDomHandler(handler, ChangeEvent.getType()); } @Override public void setEnabled(boolean enabled) { enabledMixin.setEnabled(enabled); } @Override public boolean isEnabled() { return enabledMixin.isEnabled(); } /** * {@inheritDoc} */ @Override public void setId(final String id) { idMixin.setId(id); } /** * {@inheritDoc} */ @Override public String getId() { return idMixin.getId(); } /** * {@inheritDoc} */ @Override public void setVisibleOn(final DeviceSize deviceSize) { StyleHelper.setVisibleOn(this, deviceSize); } /** * {@inheritDoc} */ @Override public void setHiddenOn(final DeviceSize deviceSize) { StyleHelper.setHiddenOn(this, deviceSize); } /** * {@inheritDoc} */ @Override public void setPull(final Pull pull) { pullMixin.setPull(pull); } /** * {@inheritDoc} */ @Override public Pull getPull() { return pullMixin.getPull(); } @Override protected void ensureDomEventHandlers() { impl.ensureDomEventHandlers(this); } }